package JDBC;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

public class Demo1 {
    public static void main(String[] args) throws Exception {
        /*
        //1.加载驱动(每种数据库驱动的类名和包名都是固定的)
        Class.forName("com.mysql.cj.jdbc.Driver");
        //2.
        Connection connection=DriverManager.getConnection(
                "jdbc:mysql://localhost:3307/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "root");
        System.out.println("与数据库建立连接！");
         */

        Connection connection = DBUtil.getConnection();
        //3
        Statement statement = connection.createStatement();
        /*
            执行DDL语句
            创建一张表:
            CREATE TABLE user(
                id INT PRIMARY KEY AUTO_INCREMENT,
                username VARCHAR(32),
                password VARCHAR(32),
                nickname VARCHAR(32),
                age INT(3)
            )
         */
        String sql = "CREATE TABLE user(\n" +
                "                id INT PRIMARY KEY AUTO_INCREMENT,\n" +
                "                username VARCHAR(32),\n" +
                "                password VARCHAR(32),\n" +
                "                nickname VARCHAR(32),\n" +
                "                age INT(3)\n" +
                "            )";
        System.out.println(sql);

        statement.execute(sql);
        System.out.println("执行成功!");
        connection.close();

    }
}
